Noah Webster
Constitutional
CONSTITUTIONAL, adjective
1. Bred or inherent in the constitution, or in the natural frame of body or mind; as a constitutional infirmity; constitutional ardor or dulness.
2. Consistent with the constitution; authorized by the constitution or fundamental rules of a government; legal.
An act of Congress prohibiting the importation of slaves into the United States is constitutional
3. Relating to the constitution; as a constitutional doubt.